public class MyUtilTest3{
	public static void main(String[] args){
		//测试边界情况
		if(MyUtil.percentage2fivegrade(0)!="不及格")
			System.out.println("test failed 1!");
		else if(MyUtil.percentage2fivegrade(60)!="及格")
			System.out.println("test failed 2!");
		else if(MyUtil.percentage2fivegrade(70)!="中等")
			System.out.println("test failed 3!");
		else if(MyUtil.percentage2fivegrade(80)!="良好")
			System.out.println("test failed 4!");
		else if(MyUtil.percentage2fivegrade(90)!="优秀")
			System.out.println("test failed 5!");
		else if(MyUtil.percentage2fivegrade(100)!="优秀")
			System.out.println("test failed 6!");
		else 
			System.out.println("test passed!");
	}
}
